Renntech breaks their own CLS63 AMG / M157 twin turbo V8 1/4 mile record with a 10.90@128.9

Amazing! Spring cant come quick enough... RENNtech I will be calling you!

I'm annoyingly happy for them. All I want is a 10sec slip.

The M278 will be next into the 11 sec with RENNtech =)

Originally Posted by m54b25

The M278 will be next into the 11 sec with RENNtech =)

This I look forward to

http://www.dragtimes.com/Mercedes-Be...lip-23728.html

Originally Posted by bigbobb

http://www.dragtimes.com/Mercedes-Be...lip-23728.html

That is not this run...

This motor looks like its going to be an absolute monster. Congrats Renntech.

Originally Posted by m54b25

The M278 will be next into the 11 sec with RENNtech =)

+1

Excellent, but I'm pretty sure they had weight reduction mods on this baby

Originally Posted by SLS AMG

Excellent, but I'm pretty sure they had weight reduction mods on this baby

Based on?

Originally Posted by Sticky

Based on?

If you look at this (not %100 accurate), maybe with a maximum %3-5 error.
http://www.dragtimes.com/horsepower-...calculator.php

hit theses values:
1/4: 10.90
Trap ET: 128.96
weight of the car incl. driver: 4207.9 (this is the stock weight of 2012 CLS63 with a 75kg driver, Knowing that thier car weighs less with lighter wheels and tires)

You will find that the crank numbers are around 670HP. Now this is with the tune and exhaust and lighter wheels and tires.

Renntech claim that the CLS2012 is underrated posting a dyno sheet of the NON-PP making 483 against a PP making 516, and claiming that it is underrated from the factory (I still dont know how) . They tuned the NON-pp making it 583 , a gain of 100HP. One thing is true, that the gains are real, and yes, the 100Hp has been achieved by tuners other than renntech long ago.

Attachment 14168

- diffrent dynos read diffrent numbers. This is a German car, In Germany they put this car on a dyno MAHA, which gives crank numbers. Look at this dyno, same car diffrent tune, (this was the tuner that Andy from MHP was working with). by the way, the NON-PP in Europe make more power than the NON-PP in the US due to emmission standards.

Attachment 14169


look at the wheel and drag power, you can see that the gains are over 100RWHP. The stock numbers are 528 and the tuned numbers are 627 (crank numbers)

Here is more info, from this link:
http://www.modernhorsepower.com/cgi-...HPM157V3CDTNPP


I dont know how Renttech are cliaming they can achieve 669HP with only a tune and claim that the car is underrated from the factory. I want to see thier numbers on a DynoMaha

Originally Posted by SLS AMG

If you look at this (not %100 accurate), maybe with a maximum %3-5 error.
http://www.dragtimes.com/horsepower-...calculator.php

hit theses values:
1/4: 10.90
Trap ET: 128.96
weight of the car incl. driver: 4207.9 (this is the stock weight of 2012 CLS63 with a 75kg driver, Knowing that thier car weighs less with lighter wheels and tires)

You will find that the crank numbers are around 670HP. Now this is with the tune and exhaust and lighter wheels and tires.

Renntech claim that the CLS2012 is underrated posting a dyno sheet of the NON-PP making 483 against a PP making 516, and claiming that it is underrated from the factory (I still dont know how) . They tuned the NON-pp making it 583 , a gain of 100HP. One thing is true, that the gains are real, and yes, the 100Hp has been achieved by tuners other than renntech long ago.

Attachment 14168

- diffrent dynos read diffrent numbers. This is a German car, In Germany they put this car on a dyno MAHA, which gives crank numbers. Look at this dyno, same car diffrent tune, (this was the tuner that Andy from MHP was working with). by the way, the NON-PP in Europe make more power than the NON-PP in the US due to emmission standards.

Attachment 14169


look at the wheel and drag power, you can see that the gains are over 100RWHP. The stock numbers are 528 and the tuned numbers are 627 (crank numbers)

Here is more info, from this link:
http://www.modernhorsepower.com/cgi-...HPM157V3CDTNPP


I dont know how Renttech are cliaming they can achieve 669HP with only a tune and claim that the car is underrated from the factory. I want to see thier numbers on a DynoMaha

This still isn't evidence of weight reduction.

Originally Posted by Sticky

This still isn't evidence of weight reduction.

I understand, but can you give proof that they didnt??

I'm just explaining why I think they went that direction. I have seen a 2012 CLS63 Bin Yas drag strip in UAE. It had an ECU tune only. Car was completetly stock, runing stock wheels and tires. it made passes @ 11.7-11.9. This was not long ago. That CLS also had the Renntech tune. The same day A C63 with headers+tune was runin @ 11.8
I certainly did not see it run 11.2

Why does it matter if they did a weight reduction? In order to gain almost a second at the strip they would have needed to drop 700-1000lbs. How in the world would they have done that?

Im happy for them. I saw this motor make 508whp with a really base tune from OE Tuning....I'm sure it has more in it...

Originally Posted by SLS AMG

I understand, but can you give proof that they didnt??

You are just speculating they did though. They listed all the mods and I have no reason to doubt Renntech.

Got to remember RENNtech Software revision it's the key for more torque & power figures not posted publicly yet for latest 1/4 mile times of 10.9sec@ 129'smph run. Along, the supported hardware upgrade was LSD, slicks, & light exhaust mods. No weight reduction it's needed & I don't think owner would be pleased to remove parts from her car.

Originally Posted by m54b25

Got to remember RENNtech Software revision it's the key for more torque & power figures not posted publicly yet for latest 1/4 mile times of 10.9sec@ 129'smph run. Along, the supported hardware upgrade was LSD, slicks, & light exhaust mods. No weight reduction it's needed & I don't think owner would be pleased to remove parts from her car.

Thank you for clearing that up.

The owner is a Lady?

Originally Posted by SLS AMG

The owner is a Lady?

That makes it all the more awesome.

Originally Posted by Sticky

That makes it all the more awesome.

certainly your point of view.